Each side should increase by 2x (left & right, and up & down) so that to match the condition :
7+2x)(6+2x) = 45
Solving it will give you: 4x² + 26x - 3
This is the concept of algebra, we are required to add up the terms given above, here we shall have:
3/(4x)+21/(8x)+26x+15
when we sum up we get:
27/(8x)+26x+15
=(27+208x^2+120x)/(8x)
The simplified form of the summation of the terms is:
(27+208x^2+120x)/(8x)
Where's the question? We have some data...but no question
First multiply all the items up with their correct prices.
5 Golf Clubs = 18.65 each
5 x 18.65 = 93.25
60 Golf Balls = 16.50 per dozen
60 = 5 dozen
5 x 16.50 = 82.5
1 pair of golf shoes = 75.80
1 x 75.80 = 75.80
Now, add them all up.
93.25 + 82.5 + 75.80 = 251.55
Lastly, multiply by 1.15 to add the 15% sales tax.
251.55 x 1.15 = 289.28
Thus, the total cost of all the equipment with tax is $289.28